MA pollen report
Boston Pollen Report
PollyMap is actively seeking a qualified local collection partner in Boston. This guide uses regional climate and historical allergen data while we recruit a local host.
Collection coming soon to Boston
PollyMap is actively recruiting a verified local partner in Boston. Be the first to know — or apply to be the partner.
Pollen patterns in Boston
In Boston, tree pollen — including Birch, Oak, Maple — typically dominates from late winter through spring. Timothy grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Top trees
- Birch
- Oak
- Maple
- Beech
- Ash
Top grasses
- Timothy
- Bluegrass
- Orchard
- Rye
Top weeds
- Ragweed
- Plantain
- Pigweed
- Lamb's quarters
Top molds
- Alternaria
- Cladosporium
- Aspergillus
- Penicillium
Boston pollen calendar
Typical monthly intensity across the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tree | ||||||||||||
| grass | ||||||||||||
| weed | ||||||||||||
| mold |
Historical reports
Cities near Boston
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
When is allergy season in Boston?
In Boston, allergy season starts with tree pollen in late winter and early spring, transitions to grass pollen in May and June, and ends with weed pollen — primarily ragweed and sagebrush — from August through October.
What pollen is highest in Boston?
The most prevalent local pollens in Boston include Birch, Oak, Maple in the spring season.
What months are worst for allergies in Boston?
Most Boston allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.
Does Boston have mold allergies?
Yes. Boston's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.
Why are allergies bad in Boston?
Local geography, climate, and seasonal plant cycles all influence allergen load in Boston. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.
Is there a local pollen collection site in Boston?
Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Boston to host weekly pollen collection.
How can my clinic become a PollyMap partner in Boston?
Clinics in Boston can apply to become the official PollyMap collection partner. Approved partners receive PollyKits weekly, conduct 24-48 hour collections, and mail samples back for microscope analysis.
Bring real pollen data to Boston.
Become the lead PollyMap collection partner in Boston and join our national network.
Apply today